diff options
| author | Eric Dumazet <edumazet@google.com> | 2025-03-08 17:48:17 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-03-13 12:07:16 +0100 |
| commit | 5f2909c6cd13564a07ae692a95457f52295c4f22 (patch) | |
| tree | 1fa3198e8783fec18ae22f2ff27182be4be995e2 | |
| parent | 45ece9933d4a8e0e8b3da8d1c3bbb1878be216c4 (diff) | |
posix-timers: Add cond_resched() to posix_timer_add() search loop
With a large number of POSIX timers the search for a valid ID might cause a
soft lockup on PREEMPT_NONE/VOLUNTARY kernels.
Add cond_resched() to the loop to prevent that.
[ tglx: Split out from Eric's series ]
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/all/20250214135911.2037402-2-edumazet@google.com
Link: https://lore.kernel.org/all/20250308155623.635612865@linutronix.de
| -rw-r--r-- | kernel/time/posix-timers.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 24d7eab1048b..de252534215c 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -144,6 +144,7 @@ static int posix_timer_add(struct k_itimer *timer) return id; } spin_unlock(&hash_lock); + cond_resched(); } /* POSIX return code when no timer ID could be allocated */ return -EAGAIN; |